# FreeIReader vs CustomBooks

The clearest difference is in-app purchases: CustomBooks at none against FreeIReader's 1. FreeIReader's advantage is iOS requirement (15.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. FreeIReader sells 1 in-app purchase, starting at $0.99 per month. CustomBooks asks for nothing beyond the download.

FreeIReader ships an update every 3 weeks, CustomBooks every 2 weeks. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | FreeIReader | CustomBooks |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Size | 42 MB | 3 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [正 董](https://appshunter.io/developer/6775552117) | [永隆 郝](https://appshunter.io/developer/6781715723) |

## What reviewers say

### FreeIReader

[App page](https://appshunter.io/ios/app/freeireader/id6775778456)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Membership service (one month) | $0.99 | per month |


### CustomBooks

[App page](https://appshunter.io/ios/app/custombooks/id6781718998)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is FreeIReader free?

FreeIReader is free to download, with in-app purchases available.

### Is CustomBooks free?

CustomBooks is free to download, with no in-app purchases.

### Do FreeIReader or CustomBooks have ads?

Neither FreeIReader nor CustomBooks shows ads.

### Which is updated more often, FreeIReader or CustomBooks?

FreeIReader ships an update every 3 weeks, and CustomBooks every 2 weeks. Most recently, FreeIReader was updated on November 5, 2026 and CustomBooks on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*